None Microbiology Questions

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None Microbiology questions!
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What bacteria, when viewed through a microscope, would appear to be coiled, corkscrew-shaped bacterial cells?

spirilla

flagella

saprophytes

staphylococci

NoneMicrobiology

Rod-shaped bacterial cells are known as .

spirilla

bacilli

staphylococci

cocci

NoneMicrobiology

Archaebacteria that live in oxygen-free environments include .

methanogens.

retroviruses.

bacteriophages.

protists.

NoneMicrobiology

One group of viruses that contain RNA as their genetic information is .

oncogenic viruses.

retroviruses.

capsids.

prophages.

NoneMicrobiology

Spherical-shaped bacterial cells are known as .

cocci

bacilli

staphylococci

spirilla

NoneMicrobiology

Disease-causing organisms are known as .

cocci.

bacilli.

pathogens.

archaebacteria.

NoneMicrobiology

Which of the following conditions is NOT a disease caused by a virus?

mumps

common cold

tuberculosis

respirator infection

NoneMicrobiology

Which of these is another term that means the same as germ or bacteria?

microbe

mite

parasite

lice

NoneMicrobiology

What are pus-forming bacterial cells called that form in long chains and cause blood poisoning?

bacilli

diplococci

streptococci

staphylococci

NoneMicrobiology

Bacterial cells that may be harmful to the body are called .

saprophytes

pathogenic

communicable

nonpathogenic

NoneMicrobiology

Particles made up of nucleic acids, proteins, and in some cases, lipids that can reproduce only by infecting living cells are known as .

bacteria.

capsids.

prophages.

viruses.

NoneMicrobiology

You have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen. The nitrate is reduced to nitrogen gas. You can be sure that this bacterium is .

gram positive

using anaerobic respiration

a chemoautotroph

a photoautotroph

a photoheterotroph

NoneMicrobiology

Bacteria that contain chlorophyll "a" belong in the group .

archaebacteria.

cyanobacteria.

chemoautotrophs.

pathogens.

NoneMicrobiology

Human Immunodeficiency Virus (HIV) can be transferred by all of the following EXCEPT .

blood

body fluids

semen

holding hands

NoneMicrobiology

Bacterial cells that are harmless and can even be beneficial to humans are called .

viruses

pathogenic bacteria

microbes

nonpathogenic bacteria

NoneMicrobiology

What does Acquired Immunodeficiency Syndrome (AIDS) cause the immune system to do?

break down

speed up

work intermittently

continue working properly

NoneMicrobiology

As bacteria absorb food, each cell grows in size and divides, resulting in how many new cells?

six

two

eight

four

NoneMicrobiology

Which temperature would be most suitable for growing bacteria in industrial conditions?